My eldest has glasses as he is about as far long sighted as a person can be LOL. His prescription was +5.50 for his right eye and +7.0 for his left (The turned one) so in theory they literally should have been as thick as coke bottle ROFL, but they were really good, very thin so they didn't look geeky at all. It is a bit weaker now that his eyesight has improved because of the continual wearing of them - all day every day - and the eye patching. Your little fella doesn't have a script near as strong as my DS, so his eyesight isn't that bad at all. It is possible that he may need the glasses full time for the rest of his life - long vision isn't usually something that 'corrects' itself and goes away after a few years. My DS will have to wear them till he's old enough for contacts, then corrective laser surgery.
And yeah, it can be upsetting at first to know that they have to wear them all the time and how that will affect them from doing things, but you get over it pretty quickly when you see just how much they improve from having them. Lindsay even plays football now (without his glasses). It is really great that you got onto the problem so early becuase Lindsay had a turned eye from about 10mths, but we didn't get his eyes checked till he was 5.5yrs as he was doing fine, no headaches or anything but he'd started school and we thought we'd do the right thing and see how he was coping with it and found out he needed glasses and went from there. He hasn't had an issue with teasing because apart from the initial jokes which were actually all from girls he doesn't get teased at all. Ironicially three of the girls in his class who did tease him now all wear glasses themselves, so I guess karma bit back. And neither DH or I have eyesight problems either - though DH's parents, brother and sister all have atrocious eyesight themselves.
Bookmarks